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- <h1>ExternalSecret</h1>
-
- <p>The <code>ExternalSecret</code> describes what data should be fetched, how the data should
- be transformed and saved as a <code>Kind=Secret</code>:</p>
- <ul>
- <li>tells the operator what secrets should be synced by using <code>spec.data</code> to
- explicitly sync individual keys or use <code>spec.dataFrom</code> to get <strong>all values</strong>
- from the external API.</li>
- <li>you can specify how the secret should look like by specifying a
- <code>spec.target.template</code></li>
- </ul>
- <h2 id="template">Template</h2>
- <p>When the controller reconciles the <code>ExternalSecret</code> it will use the <code>spec.template</code> as a blueprint to construct a new <code>Kind=Secret</code>. You can use golang templates to define the blueprint and use template functions to transform secret values. See <a href="../guides-templating/">advanced templating</a> for details.</p>
- <h2 id="update-behavior">Update Behavior</h2>
- <p>The <code>Kind=Secret</code> is updated when:</p>
- <ul>
- <li>the <code>spec.refreshInterval</code> has passed and is not <code>0</code></li>
- <li>the <code>ExternalSecret</code>'s <code>labels</code> or <code>annotations</code> are changed</li>
- <li>the <code>ExternalSecret</code>'s <code>spec</code> has been changed</li>
- </ul>
- <p>You can trigger a secret refresh by using kubectl or any other kubernetes api client:</p>
- <div class="highlight"><pre><span></span><code>kubectl annotate es my-es force-sync=$(date +%s) --overwrite
- </code></pre></div>
- <h2 id="example">Example</h2>
- <p>Take a look at an annotated example to understand the design behind the
- <code>ExternalSecret</code>.</p>
- <div class="highlight"><pre><span></span><code><span class="nt">apiVersion</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">external-secrets.io/v1alpha1</span>
- <span class="nt">kind</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">ExternalSecret</span>
- <span class="nt">metadata</span><span class="p">:</span>
- <span class="nt">name</span><span class="p">:</span> <span class="s">"hello-world"</span>
- <span class="c1"># labels and annotations are copied over to the</span>
- <span class="c1"># secret that will be created</span>
- <span class="nt">labels</span><span class="p">:</span>
- <span class="nt">acme.org/owned-by</span><span class="p">:</span> <span class="s">"q-team"</span>
- <span class="nt">annotations</span><span class="p">:</span>
- <span class="nt">acme.org/sha</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">1234</span>
- <span class="nt">spec</span><span class="p">:</span>
- <span class="c1"># SecretStoreRef defines which SecretStore to use when fetching the secret data</span>
- <span class="nt">secretStoreRef</span><span class="p">:</span>
- <span class="nt">name</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">secret-store-name</span>
- <span class="nt">kind</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">SecretStore</span> <span class="c1"># or ClusterSecretStore</span>
- <span class="c1"># RefreshInterval is the amount of time before the values reading again from the SecretStore provider</span>
- <span class="c1"># Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h" (from time.ParseDuration)</span>
- <span class="c1"># May be set to zero to fetch and create it once</span>
- <span class="nt">refreshInterval</span><span class="p">:</span> <span class="s">"1h"</span>
- <span class="c1"># the target describes the secret that shall be created</span>
- <span class="c1"># there can only be one target per ExternalSecret</span>
- <span class="nt">target</span><span class="p">:</span>
- <span class="c1"># The secret name of the resource</span>
- <span class="c1"># Defaults to .metadata.name of the ExternalSecret</span>
- <span class="c1"># It is immutable</span>
- <span class="nt">name</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">my-secret</span>
- <span class="c1"># Enum with values: 'Owner', 'Merge', or 'None'</span>
- <span class="c1"># Default value of 'Owner'</span>
- <span class="c1"># Owner creates the secret and sets .metadata.ownerReferences of the resource</span>
- <span class="c1"># Merge does not create the secret, but merges in the data fields to the secret</span>
- <span class="c1"># None does not create a secret (future use with injector)</span>
- <span class="nt">creationPolicy</span><span class="p">:</span> <span class="s">'Merge'</span>
- <span class="c1"># Specify a blueprint for the resulting Kind=Secret</span>
- <span class="nt">template</span><span class="p">:</span>
- <span class="nt">type</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">kubernetes.io/dockerconfigjson</span> <span class="c1"># or TLS...</span>
- <span class="nt">metadata</span><span class="p">:</span>
- <span class="nt">annotations</span><span class="p">:</span> <span class="p p-Indicator">{}</span>
- <span class="nt">labels</span><span class="p">:</span> <span class="p p-Indicator">{}</span>
- <span class="c1"># Use inline templates to construct your desired config file that contains your secret</span>
- <span class="nt">data</span><span class="p">:</span>
- <span class="nt">config.yml</span><span class="p">:</span> <span class="p p-Indicator">|</span>
- <span class="no">endpoints:</span>
- <span class="no">- https://{{ .data.user }}:{{ .data.password }}@api.exmaple.com</span>
- <span class="c1"># Uses an existing template from configmap</span>
- <span class="c1"># Secret is fetched, merged and templated within the referenced configMap data</span>
- <span class="c1"># It does not update the configmap, it creates a secret with: data["alertmanager.yml"] = ...result...</span>
- <span class="nt">templateFrom</span><span class="p">:</span>
- <span class="p p-Indicator">-</span> <span class="nt">configMap</span><span class="p">:</span>
- <span class="nt">name</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">alertmanager</span>
- <span class="nt">items</span><span class="p">:</span>
- <span class="p p-Indicator">-</span> <span class="nt">key</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">alertmanager.yaml</span>
- <span class="c1"># Data defines the connection between the Kubernetes Secret keys and the Provider data</span>
- <span class="nt">data</span><span class="p">:</span>
- <span class="p p-Indicator">-</span> <span class="nt">secretKey</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">secret-key-to-be-managed</span>
- <span class="nt">remoteRef</span><span class="p">:</span>
- <span class="nt">key</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">provider-key</span>
- <span class="nt">version</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">provider-key-version</span>
- <span class="nt">property</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">provider-key-property</span>
- <span class="c1"># Used to fetch all properties from the Provider key</span>
- <span class="c1"># If multiple dataFrom are specified, secrets are merged in the specified order</span>
- <span class="nt">dataFrom</span><span class="p">:</span>
- <span class="p p-Indicator">-</span> <span class="nt">key</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">provider-key</span>
- <span class="nt">version</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">provider-key-version</span>
- <span class="nt">property</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">provider-key-property</span>
- <span class="nt">status</span><span class="p">:</span>
- <span class="c1"># refreshTime is the time and date the external secret was fetched and</span>
- <span class="c1"># the target secret updated</span>
- <span class="nt">refreshTime</span><span class="p">:</span> <span class="s">"2019-08-12T12:33:02Z"</span>
- <span class="c1"># Standard condition schema</span>
- <span class="nt">conditions</span><span class="p">:</span>
- <span class="c1"># ExternalSecret ready condition indicates the secret is ready for use.</span>
- <span class="c1"># This is defined as:</span>
- <span class="c1"># - The target secret exists</span>
- <span class="c1"># - The target secret has been refreshed within the last refreshInterval</span>
- <span class="c1"># - The target secret content is up-to-date based on any target templates</span>
- <span class="p p-Indicator">-</span> <span class="nt">type</span><span class="p">:</span> <span class="l l-Scalar l-Scalar-Plain">Ready</span>
- <span class="nt">status</span><span class="p">:</span> <span class="s">"True"</span> <span class="c1"># False if last refresh was not successful</span>
- <span class="nt">reason</span><span class="p">:</span> <span class="s">"SecretSynced"</span>
- <span class="nt">message</span><span class="p">:</span> <span class="s">"Secret</span><span class="nv"> </span><span class="s">was</span><span class="nv"> </span><span class="s">synced"</span>
- <span class="nt">lastTransitionTime</span><span class="p">:</span> <span class="s">"2019-08-12T12:33:02Z"</span>
- </code></pre></div>
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